3 city centers in Tokyo!

Did you know that there are 3 city centers in Tokyo?

Shibuya, Shinjuku and Ikebukuro.

There are busy cities except them, so perhaps more than 3.

I won't say to have many city centers is good thing, or bad thing.

However, I know it's not common thing around the world, except New York.

I have lived in Dublin in Ireland. Where is the city center? Of course Dublin is.

Some of you take Tokyo as a big City with many people. ...Yes, here it is.